Brush



M. O, HAMER ET M, f

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Filed Feb. f1, 1922 1 sneetsgheet Y n. Q- Yf\`\ @f77 INVENTQ'RS LAM BYWITNESS:

ATTO RN EY 11 |92 Nov 4 M. o; HAMER E1' AL.

BRUSH Filed Feb. 4, 1922 4 Sheets-Sheet 2 K v d Q Y V- Si f@ s f O G V)si u, L a

d 0. Harrie/f Q WLQ/f .e f/W INVENTORS Nov. 11 |924.

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. Nov. il 1924. MV o. HAMER ET AL BRUSH Filed Feb. 4, 1922 '4sheets-sheet 4 lNvENToRs ATTORNEY Patente Nov. 11, 1924.

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MILTON o. IiAr/Inn, WILLIAM r. LANGE, AND crIAaLns c, GRAHAM, or CRETE@NEBRASKA. f

BRUSH.

Application led February 4, 1922. Serial No. 534,163.

To all whom t may concern.'

Be it known that we, MILTON O. HAMER, WILLIAM F. LANGE, and CHARLES C.GRA- HAM, citizens of the United States, residing at Crete, in thecounty of Saline and State of Nebraska, have invented new and usefulImprovements in Brushes, of which the following is a specification.

This invention relates to in'iprovements in power `driven brushesespecially intended for use in cleaning meat blocks, removing paint andfor smoothing surfaces, although the invention is useful in variousother capacities and for various other purposes.

An object of the present invention is the provision of a power operatedbrush which may be conveniently manipulated by the operator for thepurpose of cleaning or smoothing surfaces or articles of differentcharacter.

Another ,object of the invention is the provision of a brush arranged toprovide a machine which includes means for catching the sweepings fromthe brush, the said means embodying a collecting pan mounted so as topermit of suihcient movement to follow the brush over rough or `unevensurfaces and thus prevent the escape of the sweepings.

Another obj ect of the invention is the provision of a machine of theabove character, wherein the parts are so arranged as to provide acompact construction and permit them to be readily disassembled for theremoval of the contents of the pan, or for obtaining access to any ofthe parts of the machine. f

Another object of the linvention is the provision of a novel brushstructure, which permits of the removal of the bristles and thesubstitution of others, when necessary or desired.

With the above and other objects in view,

the invention further includes the followingy novel features and detailsof construction, to

be hereinafter more fully described, illustrated in the accompanyingdrawings and pointed out in the appended claims.

In the drawings n Figure 1 is a top plan viewof a machine constructed inaccordance with the present invention.

Figure 2 is a side elevation of the same.

Figure 3 is a top plan view with the cover removed.

Figure 9 is a detail longitudinal section through the brush.

Referring in detail to the drawings, whereinlike .characters ofreference y"denote corresponding parts, the machine as illustrated,comprises a frame 10, which is preferably formed of angle iron so as toprovide a flat upper surface.

Mounted in bearings 11 secured to this frame is a shaft 12, which hassecured thereon a brush, the latter being designated in its entirety bythe reference character 13. y'It is the purpose ofthe invention tooperate this brush by power and to accomplish this there is provided anelectric motor 14, which is secured to a platform 15 located atthe endof the machine opposite the brush 13. rlhe shaft of the motor 14 hassecured thereon a pinion 16 'andthis'pinion drives a gear 17. The latteris secured upon a shaft 1S,

rwhich is mounted in bearings 19 secured to the frame 10. Theend4 of theshaft opposite the gear 1'7, has secured thereon a pinion 2O and thispinion engages and drives a gear 21 which is secured to the end of the ibrush 13. Any suitable means may be employed forsupplying current forthe operation of the motor 14.

The rear end of the machine is equippedy with rigid runners or teeth 22,which are secured to the frame 10 and which extend downwardlyr andprovide a support for the motor end of the machine.

Located within the frame 10 between the platform 15 and the brush 13 isa collector pan 23. This pan includes a bottom, side and rear walls andis open at its top and at the end adjacent the brush 13 and is so'positioned that the sweepings from the brush will be directed into thispan. Extending f from each side of the pan near the rea-r end thereofare rearwardly extending lugs24e, which are adapted to beremovablyreceivedv within openings 25 provided in the runners or legs :(22, 'theopenings being cf a sufficient size to permit of a limited pivotalmovement. Extending from one side oi the pan 23 and spaced?t"li'ere-rfroin for 'passage through a slet 26 provided in the trame l0,is an arm 2?. rlhis arm is reduced as shown at 28 so as to providespaced shoulders 29 and 30. The shoulder 29 is adapted kto engage theundery side of the horizo'ntal'ilange of the an- .gie iron ot which theframe l() is formed, while the shoulder 30 is adapted te'b'e engaged bythe bill 3l ofl a hooi; 32. rlhis hook is provided with a resilientshan-k 33 which is secured to the framed() as shown at 34. The pan 2'3will thus be permitted a limited vertical movement at its forward endadjacent the brush, the degree'oi movementJ being regulated by the spacebetween the shoulders 29 and 30. As the resilient end of the shank I33urges the hoolr inwardly, the lat-ter will normally be positionedin thepath of the shoulder 30. B'y manually moving the hook outward, the arm27 may be released to permit of thev removal of the pan. By pivotallymounting the pan in this manner, the latter willy adapt itself to 'thesurface over which the brush is working and any unevenness in thissurface will cause the pan to move so as to' be always properlypositioned to receive vthe `sweepings from the brush. The shoulder 29 isso located as toI prevent contact between the pan andbrush.

The platform 1 5 has removably secured .thereto ahousing 35, winchencloses the motor and the gears 16 and l?, this housing being securedinplace by means ot screws or -bolts 36 which pass upward through theplatform and engage flanges extending inwardly from the housing..addition, there is provided a cover 3'2" which extends over the brushand provides a top or cover for the pan 23. Thi-s cover .includes a topside walls andan end wall, the side walls extending downwardlyuponopposite sides of the pan 23 and being vprovided `with inwardlyextending slotted-lugs 38,. which engage beneath headed studs 40 whichextend upwardly from the trame 10. ln addition, the inner end of thecover 87 is provided with spaced; lugsj41, which are adapted to beremovably received within openings provided in the housing 35.l rlheopposite' end of the cover 37 is provided with a transversely extendingy substantially U-shaped flange 42, which receives the end et the framel0 and which isaprovided with openings which register with an openingiormedl in the said trame.. Secured to this end of the cover 37 'isabracket 43 and slidingly mounted in this bracket is a bolt 44 whichisadaptedY to engage the openings provided in the iange 42 and the framel0. This bolt is provided with a ingerpiece 45 for convenient opera-4tion.

Extending downwardly from the frame 10 Lampes et contact being regulatedby the amount ot pressure. By the arrangement 'ci' the. runnersor arms36, this contact may be nicely regulated. The traine l() has extendingfrom its rear end a handle or grip 4T, while a similar handle or grip 28extendsi'rom the top ot the cover'?. rthis provides convenient means torhandling the machine.

j ln order to prevent the swe'epings 'ci 'the brush from being thrownout between the upper edges oi" the pan 2'3 and the adjacent walls o'tthe cover 37, the latter is provided with a transversely and downwardlyextending dielector plate 48', while similar plates extend inwardly tromthe opposite side walls of 'the pan 23.

ln order to adapt the machine for various uses, it is necessary thatbrushes of different characters be provided.v For this purpose the brushis so constructed that the bristles may be removably secured in place.To this end, the brush includes a cylinder 49 which slidingly receivesvwithin its opposite 'ends -a head 50 having an oti'set peripheralflange 5l. The heads 50 are mounted upon 'the shaft l2 and are 'securedin' place by means of adjusting nuts 52 and lock nuts '53. Surrounding`the cylinder 49 is a spiral brush retaining member 54, whose inneredges are j beveled as shown at 55, so that the" space between thesespirals forms a spiral groove ywhose walls include o'ppositely arrangedstraight portions and op'pos-itely extending inclined portions anddefine' a spi-ral` bristle receiving groove. The bristles which arearranged upona continuous strip and which are indicated at 56 areadapted to be posiytioned within the groove and the heads 50 of thecylinder adjusted upon the shalt so as to securely clamp the bristlesbetween the rwalls of this groove, the inclined portions 55 oi thesewalls serving to etiectua'lly retain the bristles-in place.

The invention is susceptible of various changes in its form, proportionsand 'minor -whereby the brush may be rotated,` a collect-A ing pan, lugslocated at one end oit' 'the pan mmf/ee and removably and freelyreceived Within openings provided in the frame and means for removablysecuring the pan to the frame at a point spaced from the lugs and in amanner to permit of limited pivotal movement With respect to the frame.

2. A machine of the class described comprising a frame, a brush mountedfor rotation thereon, means carried by the trame whereby the brush maybe rotated, a collecting pan, lugs located at one end of the pan andremovably and freely received Within openings provided in the frame, anarm carried by the pan for passage through a slot provided in the frame,spaced shoulders 'formed on the arm and a latch secured to the frame orengagement with one ot' the shoulders, whereby the pan will be removablysecured to the trame in a manner to posite directions.

{3. A machine of the class described comw i prlslng a frame5 a brushmounted for rotae tion in said `frame, means whereby the brush may berotated, a collecting pan secured to the frame adjacent the brush, acover having one end secured to the frame and extending over the brushand forming a top for the pan and vertically and horizontally disposeddeector plates arranged Within the pan along the upper edges thereof andbeneath the cover.

In testimony whereof We aX our signatures. I

MILTON O. HAMER. WILLIAM F. LANGE. CHARLES C. GRAHAM.

